create_scene - Allocates memory for a 3d scene. Allegro game programming library.

       Allocates  memory  for  a  scene,  `nedge'  and `npoly' are your estimates of how many edges and how many
       polygons you will render (you cannot get over the limit specified  here).  If  you  use  same  values  in
       successive calls, the space will be reused (no new malloc()).

       The memory allocated is a little less than 150 * (nedge + npoly) bytes.

       create_scene - Allocates memory for a 3d scene. Allegro game programming library.

       Returns zero on success, or a negative number if allocations fail.

scene_polygon3d(3alleg4),     render_scene(3alleg4),     clear_scene(3alleg4),    destroy_scene(3alleg4),
       scene_gap(3alleg4), create_zbuffer(3alleg4), exscn3d(3alleg4)

Allegro                                           version 4.4.3                            create_scene(3alleg4)

#include<allegro.h>intcreate_scene(intnedge,intnpoly);